Samsung Electronics Expected to at Least Double HBM4 Series Production by 2027
nashnova research
Samsung Electronics' HBM4-series output is expected to at least double in 2027 versus 2026, based on a jump in outsourced glass-carrier cleaning volume from 20,000 to 50,000 units per month — a signal that Samsung is concentrating its high-end memory bet on next-generation HBM.
What does a 2.5× jump in glass-carrier cleaning tell us?
Glass carriers — temporary support plates placed under wafers during HBM production to prevent ultra-thin dies from warping or cracking — serve as a key indirect gauge of HBM capacity.
Samsung plans to raise monthly outsourced cleaning volume from 10,000 units in 2025 to 20,000 in 2026 and 50,000 in 2027 — a 5× increase over two years.
This means → even accounting for carrier reuse and yield fluctuations, the conclusion that HBM4-series output will at least double holds up.
How are wafer inputs and product mix shifting?
Monthly wafer starts are projected to rise from roughly 180,000 in 2026 to about 250,000 in 2027 — an increase of nearly 40%.
The product-mix shift is sharper: HBM4-series share of Samsung's HBM shipments is expected to climb from about 40% in 2026 to roughly 80% in 2027.
In plain terms = capacity is expanding, but the bigger story is a rapid tilt toward higher-value products — Samsung is pivoting hard from legacy HBM to HBM4.
Where does Samsung's HBM4 progress stand today?
Samsung began mass-producing and shipping HBM4 in February this year, using sixth-generation 10nm-class (1c) DRAM and a 4nm-process base die.
In May, the company supplied HBM4E 12-High samples to customers including Nvidia.
Current expansion centers on 12-layer and higher stacking, reflecting customer demand for greater bandwidth and capacity driving rapid spec upgrades.
What is the biggest uncertainty behind this forecast?
Whether HBM4E reaches full mass production on schedule in 2027 is the prerequisite for the output forecast to hold.
The harder question is whether Samsung can pass qualification with major customers such as Nvidia — Nvidia's certification pace directly determines how much Samsung can actually ship.
This means → Samsung controls its own capacity buildout, but shipment volumes ultimately depend on customer-side validation — a variable it cannot dictate alone.
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